The Frost/Nixon star, who is a Labour supporter, said: "High cost credit is more than just pay day loans, rent to own businesses or doorstep lending.

"Millions of people across the UK are also trapped in their overdrafts by extortionate rates of interest charged by reputable high street banks."

Overdraft buffers

Banks say they have introduced a number of measures to help customers avoid going into their overdrafts and minimise any charges when they do.

These include accounts with "overdraft buffers", in which no overdraft fees are charged, and alerts for customers who are about to enter into an unarranged overdraft.

The government has also taken steps to help vulnerable people in debt. Last year it committed to introducing a six-week grace period in which debtors would be protected from enforcement proceedings and mounting interest charges.

And in 2015, the Financial Conduct Authority (FCA) imposed a cap on payday loan costs following criticism of lenders.

The FCA has also raised concerns about overdrafts and plans to consult on possible remedies later this year.

A Treasury spokesperson said: "We know that families can struggle with debt. That is why we have tightened the rules to ensure that money can only be lent to people who can afford to repay.

"We have also cracked down on payday loans, saving borrowers over £150m a year, and are introducing an energy cap to help people with household bills."